stevenz:Viber: @stevenz -
What exactly do you mean by the "inactive user" notification?
For users who installed Viber once 6 months ago and haven't used it since, they still show as a regular Viber contact but if I send them something, it disappears into a black hole. Some sort of icon or way to differentiate in an obvious way between active users and someone who hasn't logged into Viber in months would be nice.
Thanks for the clarification.
In general, Viber should auto-deactivate users who have been inactive for 45 days. Meaning, if your friends's Viber account really was out of action (completely) for 45 days, it would have stopped appearing as a Viber user automatically. Have you made 100% sure those users stopped using their Viber?